Distilled water only, if you absolutely have to use tap water, allow it to rest in a container for at least 3 days. As with most carnivoras, it should require little to no suplimental nutrients added to the soil as long as a proper grow-medium is used. Turba is a great grow medium for transplanting carnivoras and most exotics.
Always keep in mind it’s a little hotter outside now than “back in the day” :D